Printing-press.



J. BUGHBR. PRINTING PRESS. APPLIGATION FILED APR. 25, 1912.

Patented NOV. 18, 1918.

temperature in cold weather, so that said JULI-AN BCHER, OF KANSAS CITY,MISSOURI.

PRINTING-PRESS.

Specification of Letters Patent. v

Patented Nov. IS. 191 3.

l lApplication filed April 25, 1912. Serial No. 693,206.

I T o all whom it may concern.' l

e it known that I7 JULIAN Boor-1ER, a citizen ot the United States,residing at vKansas City, in the county of Jackson and State ofMissouri, have Iinvented certain new and useful Improvements inPrinting- Presses, of which the following is a specitcation. L

My invention relates to improvements in prii-itiug presses, and theprincipal feature o t'the invention resides in means for keeping the inkplate of the press at uniform I plate in turn will keep theink thereonat' the proper consistency to obtain the best results in` printing.

In cold weather more or less trouble is experienced by printersingetting a uniform impression by reason of the tact that the ink whensubjected to low temperature becomes thick, making it impossible toobtain an equal distribution thereof over the torni, which results ingetting too much ink in some places and not enough in other places onsaid form.

By employing my invention the ink is at all times retained at properconsistency to obtain equal distribution over the form, and in. orderthat said invention may be fully understood,` reference will now be madet0 1 the accompanying drawing, in which:

Figure 1; is a broken side elevationpartly in section of a pressprovided with my improvement. and Fig. 2 is a diagram showing thecircuit of the electric heater employed in carrying out my invention.

Referring in detail to said drawing, 1 designates the bed of a` jobpress provided with a'rotary plate 2 having a ratchet-wheel 3 at its'underside. Plate 2 and its ratchet Wheel 3 are rotated step by step by agravity pawl 4, actuated by an oscillatory lever 5, ,f Which in turn isactuated in the ordinary l manner by a movable portion (not shown) ofthe press. y

G designates the ink the inking rollers (not which inking rollers passshown) and the plate 2, which latter in turning distributes the inkuniformly upon said inking rollers in the customary manner.

Mounted upon bed 1 and just beneath the lower end of provided with thecustomary resistance coils S and 9, communicating at one end withasource of electrical energy 10 through a wire 11 and communicating attheir opposite ends with wires 12 and 13 leading to contact points 14and 15, respectively, adapted to be engaged one at a time, by switch 16communicating with a rheostat 17 'through a wire 18, said rheostatcommunicating with a source of electrical energy 10 through the wire 19.By proper manipulation of the rheostat 17 and the switch 16, any degreeof heat is obtained which in turn warms the plate 2 and keeps the inkthereon at proper consistency for equal distribution over thedistributing rollers and the form.

Having thus described my invention what I claim and desire to secure byLetters Patent. is

Means for heating the rotary ink plate of a printing press consisting ofan electric heater including two resistance coils located on the pressbed at a point beneath the ink plate and at the lower front end of'saidplate, a source of electrical energy, a contact for each coil inelectrical connection therewith` a rheo-stat in electrical connectionwith the source of energy, a switch movable from one contact to theother, and an electrical connection between the switch and rheostat.

font for supplying shown) with ink, over the form (not In testimonywhereof I affix my signature in the presence of two witnesses.

JULIAN BCHER.

Witnesses:

SAM J. Luonnrr, IV. J. Pmrnn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Tatents, Washington, D. C.

plate 2 isan electric heater 7

